TM 55-1930-209-14&P-9-14-14.2 Emergency shutdown. For operating total barge shutdown and system shutdown systems, see paragraph 2-17.2. For emergency shutdown of the SSG at the engine:a. Push red EMERGENCY STOP button on side of generator housing.b. Turn ENGINE START/STOP switch to STORc. Reset EMERGENCY STOP button by turning clockwise and pulling out.d. Troubleshoot and correct problem requiring emergency shutdown.4-15 . Operation under extreme conditions4-15.1 Temperature extremes. Ship service generator sets are designed to operate at ambient air temperatures of -22F to 1 220F. Standard lubricating oil is SAE 1 5W40. SAE40 is used if temperatures in voids consistently exceed 120DRAdditional information on lubricants for operating in extreme temperatures is provided in the manufacturers manual.4-15.2 High humidity. High humidity increases probability of fuel oil becoming contaminated with moisture. For detailson combating this problem, see TM 55-1930-209-14 & P-8, Fuel Oil System.Section IV. Maintenance instructions4-16 . General SECTION IV.4-16.1 Maintenance concept4-16.1.1 Unit level and IDS/IGS maintenance on the SSGs is performed onboard by barge crew member wheneverpossible.4-16.1.2 Any IDS/IGS maintenance beyond the capability of crew member is provided by a shore-based area supportmaintenance unit. This unit also determines if depot support maintenance is required.4-16.1.3 Intermediate support maintenance is accomplished by replacement of components or major end items.4-16.1.4 Unless other intermediate support maintenance procedures are directed, IDSAGS maintenance is normallyprovided by an Army Transportation Corps floating craft intermediate support maintenance unit serving terminal operatingarea. Components to be disposed of are processed by this unit.4-16.15Maintenance Allocation Chart (MAC) is in TM 55-1930-209-14 & P-1 8. For maintenance on other systemsonboard, consult appropriate manual.4-16.2 Maintenance procedures. Maintenance instructions are contained in the following paragraphs: Appendix C,Preventive maintenance checks and services; paragraph 4-18, Troubleshooting; and paragraph 4-19, Maintenanceprocedures.4-17 . Preventive maintenance checks and services. See TM 55-1930-209-14&P-9-1, Appendix C for preventivemaintenance checks and services for the electrical power system. See TM 55-1930-209-1 4&P-1 9 for complete preventivemaintenance checks and services for all ROWPU Barge Systems.4-7